i just got my xs-engineering turbo kit with apexi power fc takign care of em and a slew of other goodies rounding out the fuel system
it is a t28 t3 still not absolutley positive but i will be running 7 psi on the stock block until more money comes in

what im wondering is this
i havea hks hi power on the car right now....i believe its slightly smaller than a 2.5"....will this be ok to run? from what ive researched and talked with peopel about...backpressure is bad....but if there is none you can run into problems as well...
can someone set the answer straight and tell me if im good with the setup?

 

2.25+ is fine for a low boost setup

Sure, bigger is better but youre fine

And you could have easily searched this topic

 

Hell, I made boost just fine up to 7 PSI with my stock 1-3/4" exhaust. Spool improved quite a bit, though, when I finally increased it to 2.5".

 

i did search wide open throttle

 

That will work just fine for low boost. I have been running my Tanabe Racing Medallion on 7psi and have had no problems.

 

i have same exhaust... i have had the same question.

you conside 10psi low boost?

 

ive read articles where r&d people form like apexi and hks say 10 psi is low

in my mind...7 psi is low...10 psi is pushing it on a stock block

but i mean...i guess you could say 10 psi is low...considering there are people boosting 20+

 

I agree that w/ a stock block 10psi would be about the limit (at least for a GS-R). For somone with a built engine 10psi is still low. Talking exhaust 10psi is still low and your exhaust would be fine.

 

cool bro...thanks a lot

ill post once its on!